Bleeding can occur when we wipe too hard on the stoma, or the cotton is too dry. Granuloma – a small, raised tissue surrounding the stoma also bleed easily. If the bleeding is at the stoma surface, you can use a cotton to apply pressure on the bleeding point, and it will stop within seconds. Sometimes the bleeding comes from interior of the intestine, which is more than 10ml, then you need to consult the doctor.